srand() Archives - C Program Examples

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#include <stdio.h>
#include <time.h>
#include <stdlib.h>

int main(void) {
int toss = 0;
int call = 0;
srand(time(NULL));

toss = rand() % 2;

printf("Say head or tail! press 0 for head and 1 for tail:nn");
scanf("%d", &call);
if(call==0 || call==1)
{
if(toss == call)
{
if(toss==1)
printf("You called it correctly ... it is tailn");
else
printf("You called it correctly ... it is headn");
}
else
{
if(toss==1)
printf("No way ...it is head !n");
else
printf("No way ... it is tail!n");
}
}
else
printf("Invalid call!!!!!nn");
return 0;
}

C Program to generate random numbers. Random Numbers are numbers which are produced by a process and its outcome is unpredictable.The function srand() is used to seed the random sequence. The rand() function shall compute a sequence of pseudo-random integers in the range [0, {RAND_MAX}] with a period of at least 2^32.
Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                      Happy Coding
***********************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

main() {
 int i, num;
 printf("Enter how many random numbers you want?n");
 scanf("%d", &num);
 //The function srand() is used to seed the random sequence. 
 //srand() will generate a specific "random" sequence over and over again. 
 srand(time(NULL));
 //The rand() function shall compute a sequence of pseudo-random 
 //integers in the range [0, {RAND_MAX}]  with a period of at least 2^32.
 for (i = 0; i < num; i++) {
  printf("random_number[%d]= %dn", i + 1, rand());
 }

 printf("A number between 0 and 99: %dn", rand() % 100);

 printf("A number between 0 and 9: %dn", rand() % 10);
 
 return 0;
}

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